Kristen Wiig has revealed she agreed to appear in Anchorman: The Legend Continues before she found out anything about the film.

The Bridesmaids star is to play a love interest for Steve Carell's character Brick Tamland in the sequel, alongside returning cast members Steve, Will Ferrell and Paul Rudd.

"I'm totally completely flattered. I said yes before I knew. Anchorman is one of my favourite movies. I love all of those guys," she told Collider.

Kristen - who has worked with many comedic stars before - admitted she got a bit star-struck on set.

"I think it was my first day, and they were all there in their costumes and the cowboy hats and the vests and everything. I was like, 'Oh my gosh, I'm actually here and that's really them'. I geeked out for a minute," she admitted.

"I couldn't believe that I was there, and to be a part of it is very surreal. I can't wait to see it and have it come out."

The 39-year-old, who voices secret agent Lucy in Despicable Me 2 alongside Steve, teased that the follow-up to the 2004 comedy will be as "crazy" as the original.

"The movie is pretty crazy. It's like the first one. It's a little bit all over the place, like is it reality or what's going on? If you like the first one, you'll definitely like this one," she added.

Anchorman: The Legend Continues is scheduled to open in the UK on December 20.